[UnAnswered] PS3 System Update using Safe Mode?

Sponsored Links

When using PlayStation 3's System Update within the Safe Mode menu, are you able to re-install the same firmware the system is already running? For example, a PS3 has firmware 3.15 installed and it becomes corrupt. If I put firmware 3.15 a USB drive and select System Update while in Safe Mode will I be able to reinstall a fresh version of the 3.15 firmware?